Charging car battery volts amps va,4 volt lead acid battery charger 2014,rechargeable battery case for iphone 5 4g - Plans On 2016

27.11.2014
A very simple battery charger circuit having reverse polarity indication is shown here.The circuit is based on IC L200 . I want to ask the reason of using 1.5A FSD component used in the above schematics and its little bit introduction.
I would like to resurrect an old charge car batteries and provide it with a new charging circuit. I wanted to know if at this circuit you can add a few transistors (eg 2N3055) to increase the charge current. Hi Vijay the following circuit will be best suited for you it can charge up to 150AH battery.
What are the Ohm(s) and watt(s) of R2 and R3, and define the formula using the correct values of R2 and R3 including V5 and Io. Electronic device for sending Morse Code semi-automatically; connects to a key (see above). Dits are sent by pressing one paddle [of the key], dahs sent by pressing the other one (courtesy of VE3FFK).
The System has grown by word of mouth to be largest site devoted totally to Amateur Radio on the Internet.
Thinking about QSL cards, and the high cost of sending SASE envelopes to request copies of the other ham's QSL? The Radio Reference Forums provide the largest most popular place to come and talk about radio communications monitoring. An independent source of Amateur Radio news from around the world available weekly in both text and MP3 formats. At one of the AARO club meetings, Bob K5AUW passed out a hand written diagram showing how to build your own charger circuit.
Either the 15-ampere, 30-ampere or 45-ampere sizes may be used, and both sizes mate with each other. Build your own Accurate LC Meter (Capacitance Inductance Meter) and start making your own coils and inductors.
1Hz - 2MHz XR2206 Function Generator produces high quality sine, square and triangle waveforms of high-stability and accuracy.
Having the ability to control various appliances inside or outside of your house wirelessly is a huge convenience, and can make your life much easier and fun.
For this powersupply to work efficiently, the input voltage has to be minimum 3V higher than the output voltage.
Silicon Rival Stalks Apple, Google, Tesla-Facing Chip Markets Investor's Business DailyInvestor's Business Daily Some say the newcomer is poised to swarm the $30 billion semiconductor market. With commonly available microcontrollers like the Mega8, Mega16 and similar, and with a minimum of external components I wanted a design that would be capable of displaying at least 15x15 characters on a VGA monitor using standard VGA frequencies. The number 1 wire goes to a resistor or dash light and is suppose to glow when not charging. The brown wire for the indicator light coming off the alternator is grounded when the alternator is not charging and provides +12V when it is charging. The 100 amp Powermaster (Delco design) alternator I have, 8-37100, has the capability to go either as a 1 or 3 wire. The diode allows the current to flow in one direction only, but it does not provide any resistance. Yeah - I did know that about the diode, but there is a wee bit of resistance and wasn't sure if it was enough. If using an indicator light, you would use a single element bulb with a non-grounded (plastic) socket. If you prefer to use a diode (not a resistor), you will connect it so that the current will only flow from the ignition terminal of the ignition switch to the alternator.
Speedway Motors offers an alternator wiring harness for the GM internally regulated alternator with the correct diode.
Whether you use a diode or an indicator bulb, the connection will go from the #1 terminal on the alternator thru the diode or indicator bulb and then to the ignition terminal on the ignition switch.
When the battery discharges, some of the lead from the plates combines with the electrolyte to make lead sulfate (PbSO4) which builds up on the surface of the plates as crystals (as electrons leave the battery as electricity). See this web link for an example of how the webmaster for SanAntonioHams.org has updated his. K index values range from 0 -very quiet- up to 9 -extremely disturbed- (Courtesy of IPS Radio and Space Services, Sydney, Australia).
It is designed to be the fastest, easiest, and cheapest way to exchange QSO confirmations, eliminating the cost and time that regular QSL cards have required for the past half century. Many of the ham clubs around the world re-broadcast this recording during their weekly radio club net. AGWPE was written by George Rossopoulos, SV2AGW, and is an acronym for " SV2AGW's Packet Engine".
This allows you to connect 12 volt power to this circuit, that will pass it along to your radio or other device, plus (and here's the trick) simultaneously charge the connected backup battery. This was so that they would be able to install and use city provided emergency radios if deployed with such, and to encourage the use of these more reliable connectors. Proper chargers are usually expensive and cheap chargers supplied with the original equipment often incorrectly charge the cells and dramatically shorten their life. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils and inductors. The meter is a perfect addition to any power supply, battery chargers and other electronic projects where voltage and current must be monitored.
It is a very useful bench test equipment for testing and finding out the frequency of various devices with unknown frequency such as oscillators, radio receivers, transmitters, function generators, crystals, etc. BA1404 HI-FI Stereo FM Transmitter broadcasts high quality stereo signal in 88MHz - 108MHz FM band. It is an irreplaceable tool for troubleshooting and repairing electronic equipment by determining performance and health of electrolytic capacitors. 8-DIP machined IC socket allows to swap OPA2134 with many other dual opamp chips such as OPA2132, OPA2227, OPA2228, dual OPA132, OPA627, etc. It's breadboard compatible so it can be plugged into a breadboard for quick prototyping, and it has VCC & GND power pins available on both sides of PCB. I'm currently set up as a 1 wire - and it works, but after doing my homework, late again, just like high school I prefer the better reliability of the 3 wire arrangement. R2 & R3 are in parallel enable you to make the required value by using standard preferred values.
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Dave has over 25 years of experience architecting computer hardware and software systems and has been involved in other pioneering software projects involving amateur radio and artificial intelligence. Locally in San Antonio, the AARO Ham Club broadcasts this on their Monday night net at 8:30pm, prior to their check-in net at 9pm. It was originally created as a TNC management utility and has many super features of value to TNC users, however, this web site deals primarily with AGWPE's ability to encode and decode packet tones using your computer's sound card. You only need a sound card interface, which is a set of cables to connect your sound card to your radio. Only compatible programs that have been specifically written to take advantage of AGWPE's host services will work, but there are several good ones. If the external 12 volt power (DC) fails, the circuit allows the radio to draw power from the attached battery. In fact, there is even a 75-ampere size available for a much higher cost per pair of connectors, that will handle 6, 8 or 10-12 gauge wire.
This 'intelligent' charger was designed for high current and rapid charge applications such as cordless power tools and model racing cars. It can be connected to any type of stereo audio source such as iPod, Computer, Laptop, CD Player, Walkman, Television, Satellite Receiver, Tape Deck or other stereo system to transmit stereo sound with excellent clarity throughout your home, office, yard or camp ground. Unlike other ESR Meters that only measure ESR value this one measures capacitor's ESR value as well as its capacitance all at the same time. Headphone amplifier is small enough to fit in Altoids tin box, and thanks to low power consumption may be supplied from a single 9V battery. It's small, power efficient, yet customizable through onboard 2 x 7 perfboard that can be used for connecting various sensors and connectors.


You can control lights, fans, AC system, computer, printer, amplifier, robots, garage door, security systems, motor-driven curtains, motorized window blinds, door locks, sprinklers, motorized projection screens and anything else you can think of. Both offer 200 V direct sensing which eliminates the need for external voltage divide 29 June 2016 Be Quiet!
The American Auto Wire schematic shows a red jumper from #2 terminal to the BAT terminal and a brown wire from #1 back a switched ignition position through a diode rather then through a resistor or indicator lamp.
My charge wire - bigger then #8, for sure is no problem, but that indicator wire -I'll use the #16. It does not make any difference which wire connects to the #1 wire coming from the alternator. I've already picked up the connector, but will file the Speedway information for the future (their new street rod catalog came yesterday - that part is on p174). When the battery is next charged this process is reversed with the lead sulfate crystals breaking down - returning the lead to the plates and restoring the electrolyte to its original composition. He experimented and developed the eQSL.cc concept over a period of several years, designed the system, wrote all the software, developed the SQL database, designed the graphics, and currently handles much of the technical support. You can click on either of the links below to download either a text or audio version of the news. Interfaces can be made for a few dollars or purchased for as little as $30-40 US, while the cheapest external TNC costs at least 100 US.
The sound card features of AGWPE should work with most 16 or 32-bit sound cards (and integrated main board sound chips), although it will not run on all cards (see compatible sound cards). Usually the 30-ampere size is used for most installations, but if you need to feed a group of radios from one wire, we recommend use of the 45-ampere or 75-ampere rated connections with the higher gauge wire.
Unfortunately the battery packs are fairly expensive to replace, sometimes costing almost as much as the entire drill kit, if in fact you can purchase the batteries separately at all.
The circuit includes an auto ranging as well as reset switch and produces very accurate and stable readings. Arduino Prototype uses all standard through-hole components for easy construction, two of which are hidden underneath IC socket. My question is will that diode create the proper resistance or do I still need a resistor - i.e. That is really the easy part, just move to the left side of the screen and "click" the part that says Sign Up for a FREE Homepage or E-mail Account!
AGWPE is particularly valuable since it can act as a "host" program for several good packet programs that do not have sound card packet capabilities of their own.
The problem is that not everyone has the tools required to build that filter so I decided to figure out a filter design that could be built in less than an hour by anyone with basic tools, have a cost under $20, and handle a current draw of at least 20 Amps. This charger uses the cell manufacturer's recommended charge method, to safely and quickly charge batteries.
USB IO Board is self-powered by USB port and can provide up to 500mA for electronic projects. Board features 28-PIN DIP IC socket, user replaceable ATmega328 microcontroller flashed with Arduino bootloader, 16MHz crystal resonator and a reset switch. With unmatched flexibility through a modu 28 June 2016 Huntkey Launches the First Tea Maker PR Newswire (press release) Huntkey Enterprise Group, founded in 1995, is a professional provider that specialized in the development, design, manufacturing and marketing of PC , industrial , surge protectors, adapters, , etc. When you turn on the ignition switch, current flows thru the bulb to the alternator (internally grounded) and will light up the bulb.
This is a particular problem when batteries are left discharged for long periods of time and when they are deeply discharged.Lead sulfate on the plates of a battery acts like an insulator reducing the plate area in contact with electrolyte. Another would be if a friend become a silent key (deceased ham) and their bio needed changed to provide details. In June 2003, George SV2AGW released a new program,  Packet Engine Pro, based on the original, freeware AGWPE program, but this version does cost $49. It is cheaper to purchase your own cells and use the old case to manufacture a battery pack, if you can do the soldering of the battery tags (Note: don't solder directly to the batteries as is damages them and is quite dangerous). In selecting replacement cells, I researched the manufacturer's specifications on charging and guess what? Over time this build up of lead sulfate crystals will result in a battery which cannot hold much charge - i.e. All photos are examined manually prior to posting, and photos in bad taste will never appear.
This module is also highly recommended to purchase if you plan on running the new Winlink2000 software in addition to Packet. Arduino sketches are uploaded through any USB-Serial adapter connected to 6-PIN ICSP female header. And last - do I really need #14 wire for that last wire - it will be a PITA at this point to run another engine compartment wire as I do have one spare #16, I believe.
In other words, the supplied battery charger is a very simple device that applies constant current to the battery pack. Board is supplied by 2-5V voltage and may be powered by a battery such as Lithium Ion cell, two AA cells, external power supply or USB power adapter. It can also be used every few months to keep batteries in the best possible condition all the time.
You can also provide your email address for contact info, and they create an image with your address in it, not a clickable email link. Desulfation will not bring batteries with a shorted cell or worn out plates back to their former glory, but it is a valuable tool for anyone depending on battery storage for power who cannot afford to buy new batteries.When lead sulphate crystals build up on the lead plates, it is not an easy task to remove them and thereby recondition the battery.
During the recharging process, once batteries reach their 100% charge, the cell starts to heat and the internal pressure builds up, causing the battery to eventually rupture or vent electrolyte. Having paid good money for a new battery pack, I decided to design a new charger that would not damage the battery. The maximum length for a is 284mm  28 June 2016 Ukraine's FM disappointed with PACE declaration on need to resume dialogue with Russia Ukraine TodayUkraine Today It will force Russia to invest so much money into building power plants and make seawater into freshwater plants and remaking all the facilities (e.g. Breaking down hardened crystal build up and dissolving cystals back into the electrolyte requires a charging voltage much higher than would ever be used to actually charge the battery.
I decided from the specifications and from my preferred style of use (throw it in the charger and expect it to be good next time I reached for it) that the design of a better battery charger would require the charger to sense the condition of cells and charge accordingly. To perform this task requires a device that measures, remembers and controls which state the charge should be in, and when coupled with some complex characteristics that rechargeable batteries can exhibit, it seemed to me that logic control circuitry was required. But, if you were to put this constant high voltage through the battery it would overheat, release gas, and could potentially explode. I wanted to keep the design as simple as possible, and reduce the component count, because reducing the size and number of holes in the PCB is the major cost driver in circuit manufacture. Therefore pulse conditioning is used to give very short blasts of high voltage sufficient to shift the lead sulphate crystals without overly raising the temperature of the battery as a whole.Every lead acid battery has a resonant frequency at around 2 to 6 megahertz. I soon realised that the simplest design would be a one-chip design, and that was to use a PIC. If pulses of electricity (high frequency, high voltage, but low power) are sent into the battery, rhythmic beating (resonance) of the plates causes the crystalline deposits to break up and the sulphate returns to the electrolyte solution.This process takes three to four weeks typically during which time the battery must be trickle charged (in parallel with the desulphator) so that the battery ends up reconditioned and fully charged.
Below is a video showing the lead plates inside two identical batteries - one which has been desulphating for three weeks, and one which has been left in its original sulfated condition.Note that the voltage measured across the battery terminals will drop as the desulphation takes place as the internal resistance of the cells is reduced by the clearing of the crystals on the lead plates. At the same time, the amount of charge that the battery can hold will be increasing.Build a Battery DesulfatorA DIY battery desulfator circuit originally published in the US-based Home Power magazine has been successfully made for many years all over the world. Here are links to the instructions to build the Low Power (circuit design above, and finished example circuit pictured below) and the High Power versions of the circuit.
These links are to be found together with a lot of other useful information here.For more infomation about battery desulfation, click here to visit the very useful Lead Acid Battery Desulfation Newsgroup. To start with a cell is defined as a single vessel containing electrodes and electrolyte for generating current. Also try this link to Mikey Sklar's Mini-D 12V battery desulfator, and his second generation battery desulfator with the addition of a display and data logging.
They can supply very large amounts of current and display a remarkably flat discharge characteristic, maintaining a consistent 1.2V throughout discharge. This is called the "knee" characteristic because of the shape of the graph of voltage against time. Rechargeable battery capacity is rated in mAH (milliampere-hours). The total capacity of a battery is defined as "C", that is it can supply C mA for 1 hour, or 2C for 30 minutes etc. Charge rates can vary from trickle charges to keep the battery 'topped up' of 3.3% of C to 5% of C, a slow current charge of 10% of C to 20% of C or a fast charge of 50% of C to 100% of C. Fast charges such as 100% of C should be terminated after about 1.5 hours, providing the battery is flat to begin with.
Once a battery is fully charged, the battery produces gas creating a high internal pressure, and a sudden rise in temperature. The charge should be switched to a trickle charge at this point or the battery will begin to vent and release its electrolyte. My old battery was rated at C=1300mAH and my old charger was rated 400mA (30% of C) so the charger should have been switched off after about 4 hours, provided that they were almost flat to begin with.


However there is no way of knowing if C was actually 1300maH or if it had decreased a bit, and once the a battery starts to deteriorate, I suspect this becomes a vicious cycle and the battery deteriorates rapidly due to more and more overcharging. Almost every one quotes it as the reason that cells have to be completely flattened - otherwise they develop some sort of memory, and can only hold a partial charge from there on. The effect disappears when the battery cycle is suddenly varied, and it is extremely difficult to reproduce this effect even in a laboratory. So the "memory effect" is not a significant problem in home usage. What I can tell you is while it may be OK to discharge individual cells to 0V, it is certainly not recommended to discharge an entire battery of cells.
When the battery is discharged below 0.8V per cell, one of the cells is inevitably weaker than the others, and goes to zero first.
If the battery is further flattened this battery becomes charged in reverse, which again makes it still weaker. Eventually the battery's performance drops off quite suddenly which ironically is the very thing that the user is trying to prevent. Most users know where the battery's "knee" occurs; it is when the original equipment first starts to show signs that the battery performance (and hence voltage) is suddenly dropping, and it is a good idea to place it straight on charge at this point. They can build up internal heat when working and this can cause temperatures inside to increase also.
They also should be left to cool down for a while after discharge before placing them on charge.
The value for C often forms some of the part number and the part number can be searched for on the Internet. Note that the cell value for C is the same as the battery value for C. Manufacturers data gives that when designing a charger you should first consider how the cells are to be used. For these applications the charge use is termed "cycle use" where the battery is repeatedly charged and discharged. In addition, usually the charge time required is as fast as possible, between 1 and 2 hours. Despite this I conservatively selected 1.25A as my charge current, because I wished to be able to charge 1300maH batteries also.
This value should be good for most readers, and it doesn't really matter if it is a bit less than 100% of C, because the charger will still detect a peak eventually anyway. However, some readers will want to adjust the maximum current, and this is described a bit later on. For "cycle use", there are two recommended methods of detecting charge termination, either using a temperature sensor in the battery pack or using a "negative delta V" cutoff system.
The temperature technique relies on detecting the sudden rise in battery temperature to shut off the charge. There is nothing wrong with doing this but battery packs do not always come with temperature sensors built in. Hence, no matter how discharged the battery is, this technique will give enough charge to restore the battery to its full state, and then the battery is continually "topped up" with a trickle charge to prevent slow leakage through internal resistance. Other things to consider are the requirement to let a battery cool down, so a better charge can be applied. This battery charger waits for the battery voltage to stabilize for about 30 seconds before starting to charge. If the battery has just come off discharge and is hot, it may take a minute or so for the charge to begin to start. For this reason the charger starts with a slow "soft start" charge for 4 minutes to allow the battery to cool and get past this point. The charger uses a threshold of 2V (open circuit voltage) to recognize that a battery has been connected.
In practice even a very old battery that has been actually shorted out for some time, will recover above this value when unloaded. Note that the first Light Emitting Diode (LED) comes on continually whilst battery is undergoing the bulk charge process, while the second LED gives an indication of the particular type of charge being applied. Normal operation of the charger is fairly straightforward. Once a battery is connected, the charger will progress though mode 1 (cool), 2 (soft), 3 (fast) and 4 (trickle).
When the battery is removed, the charger will revert to mode 0 (standby). Operating Principle The circuit was first designed as a block diagram shown in Fig 2. The micro-controller senses the battery voltage and internally uses an analog to digital converter to read the battery voltage. The micro-controller, requires its own 5V regulated supply and displays the current charging status on two LEDs. The smallest and cheapest micro-controller that could be used to perform the Analog to Digital function and still have the necessary functions and control lines to do this is the PIC16C711. It is an 8 bit, high performance CMOS 4MHz CPU, that has 4 Analog to Digital converters, a brown out timer and a watchdog timer which are used in this circuit to reset the chip if problems occur such as power transients or dips.
Hardly enough to load Windows 2000 on I know, but quite enough to write a control program on - makes you wonder doesn't it! The final circuit is shown in Fig 3.
The circuit consists of a bridge rectifier and capacitor to reduce the ripple under a full 1.5A load to about 1V.
Just use Ohms law and divide the 1.25Volts by the current that is recommended for full charge. The IN5404 diode ensures that the circuit charges the battery, and prevents the battery running the circuit, should the input power be accidentally turned off! The PIC can turn the transistor off by shorting the base to ground, and this allows the LM317 to provide a regulated, constant current output. The drive current for the PIC, the transistor base and the transistor collector are all in the order of 1mA which is within the rated range of the PIC and transistor. A final feature of the software is that there is a Built-In-Test (BIT) upon power up that effectively tests all of the components except the capacitors (more than 80% of the components). If the voltage does not reach at least 10V when high and go below 2 V when low, then an error is detected. This mode can be verified by shorting the output on power up or plugging in a battery during the BIT. The error mode will also be invoked if no peak is detected after 3 hours of main charge. Construction The circuit was developed and tested in full on breadboard and finally made on a Printed Circuit Board (PCB). The board is copyright to the designer, but home users can make their own board for personal use. The board was designed to be single sided with thick tracks and gentle curves, so it could be easily manufactured even at home, there are no vias or jumpers and all components can be directly soldered on the board.
The LEDs can be directly mounted on the board on the solder side and can then pass through the centre of the front panel if required, or they can be connected via wires and mounted separately. The circuit also delivers a large current, so the high current tracks on the board have been deliberately made short and thick to carry the load. Charger Assembly A complete parts list is included in Fig 6. The circuit is easy to construct in a few hours, however the constructor will need to be careful with the polarity with some components, namely the transistor, the electrolytic capacitor, the IC and the diode. The No 1 pin of the PIC is next to the divot in the chip and faces the side of the board furthest away from the LEDs. Charger Heat Sink For the connections to the LM317, you can download the datasheet in pdf form from the bottom of this page. It will need to be bolted to the case tightly with silicon grease applied underneath to ensure a good thermal contact. The LM317 needs to be electrically isolated from the case by a silicon washer and grommet kit for a TO3 style transistor. Don't forget to clean all of the flux off the board with a toothbrush soaked in methylated spirits, as over time flux will corrode your solder joints and tracks. If you are a beginner I recommend the use of an external "plug pack", however you could mount a mains transformer inside the unit, if you are competent to carry out mains wiring but you will obviously need a larger box. Charger In Use For the connection to the battery, I used my existing charger pack.
I removed the internal circuitry, which was no more than a transistor and LED that indicated that current was being delivered. For power connections, EIAJ DC Voltage connectors and plugs are standard, with the positive usually being the centre pin.
It is wise to select your pin sizes so that the AC cannot be plugged from the AC plug pack to the charger, if you use this setup. To explain the various control modes to the user, the artwork for the front panel includes a legend for understanding the flashing LED indications.
This artwork is included as Fig 7. The circuit was tested using a voltage data logger and the results of this are included as Fig 8 and Fig 9 which show the original and new charge profiles respectively.
Note particularly the new charge profile switching to trickle charge when a peak is established. Conclusion The charger was easy to construct, and has been demonstrated to charge effectively and safely many times.
As a result of this project my charging time has halved from 3-4 hours to 1.5 hours maximum. The source code is not freeware or shareware so please don't ask me to mail you the source code as it has commercial applications.
Free support is available if you have any problems with the construction of this project, and many hundreds have been sold in Australia and overseas. Click on the button below to order a PIC. RCS RadioThe blank printed circuit board is coded 14104011 and is available from RCS Radio Australia phone 61 2 9738 0330.



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Comments Charging car battery volts amps va

  1. OGNI_BAKU
    Make sure that your laptop than other standard.
  2. Boy_213
    Want to let the sun do the charging - if it's sunny see a series remember to check the.